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(ModeL) 4 Sheefs--Sheet 1.

G. H. W. CURTIS.

SEWING MACHINE.

Patented Aug. 1, 1882.

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WITNESSES: AZQJ J-wz 6M v ATTORNEY.

(ModeL) 4Shee.tsSheet 2.

G. H. W.- GURTI SK SEWING MAGHINE. No. 261,913. Patented Aug. 1, 1882.

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(Modem 4 Sheets- Sheet 3. G. H. W. CURTIS.

SEWING MAGHINE.

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G. H.-W. CURTIS.

SEWING MAGHINE.

N0.,261,9%3.' I Patented A%g.l, 1882 V d BY ATTORNEY.

UNITE STATES PATENT OEErcEo GEORGE H. W. CURTIS, OF BROOKLYN, N. Y.,ASSIGNOR TO THE WHEELER & WILSON MANUFACTURING COMPANY, OF BRIDGEPORT,CONN.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 261,913, dated August1, 1882.

Application filed March 11, 1881. (ModeL) To all whom it may concern:

Be it known that I, Gnoncn H. W. CURTIS, of Brooklyn, county of Kings,State of New York, have invented a new and useful Improvement inSewing-Machines, which is fully set forth in the following specificationand accompanyingdrawings, in which- Figure 1 is a side elevation of aWheeler & Wilson sewing-machine with myimprovements 1o thereon; Fig. 2,a front elevation of same;

Fig. 3, a full-size view of a portion of my improved mechanism; Fig. 4,a cross-section of the same. Fig. 5 is a side view of aportion of theneedle-bar, collar, and rock-shaft and a sectional view of theWork-supporting arm and its mechanism. Fig. 6 is a top view of the arm.Fig. 7 is a side view of the bobbin-case; Fig. 8, a top view of thetension-pad; Fig. 9, a side view of the rotating disk; Fig. 10, a

side view of the bobbin; Fig. 11, a top view of the same; Fig. 12, aview of the rotating ring and the plate by which it is supported, withthe needle-bar and feed-operatingcollar in section. Fig. l2 is avertical section of the ring and plate and the adjoining parts; Fig. 13,a view of the rock-shaft-operatin g cam reversed.

The object of my improvement is to provide a machine applicable torepairing the uppers of boots and shoes and the insertion of new 0elastics, the soles forming no obstacle to the accomplishment of suchwork by the machine. This result is attained by so connecting thefeeding presser-t'oot with the presser-bar as to permit, by means ofappropriate mechanism,

5 the complete rotation of the feeding presserfoot while resting uponthe boot or shoe, whereby to move the same in anydirection at will.

In the drawings, .A represents the arm of the machine, throughwhichpasses shaft B,

40 having at its end gear 0, which, working in gear 0, rotateshook-shaft d.

Presser-foot C has its under surface roughened to act as a feed inconjunction with throatplate e.

Upon the main shaft B is located cam R, in the slot of which playsroller or pin it upon the end of lever L, swinging upon screw it, whichsecures it to the frame of the machine, connected with an arm ofrock-shaft f by a similar screw, 8. Main shaft B, by these connections,oscillates rock-shaft f, carrying arm g, which forces down collar h onneedle-hart until the lower end of said collar strikes feedcam j on thefront of presser-foot C, impelling it forward. Collar h isreturned toits original 5 position by spiral springs 9. As lever g rises it forcesup collar 5 on presser-bar D, thereby lifting and releasing presser-footC, which is returned to its original position by spring a. Collar h iskept in position by pin 6, secured to collar 5.

At the end of presser-foot bar D is secured circular plate K, upon whichis loosely placed an annular feed-disk, E, between the raised portions 1l of which presser-foot O is suspended by pin m. It is obvious thatwhile the sewing is progressing tlie feed-disk carrying the presser-lootmay be urned in any direction by means of lever Within the frame, inclose proximity to the needle-bar, is a rotating ring, 0, held up byplate 1). From this ring is suspended feedcam j, within the slot q ofwhich pin r at the top of the presserfoot plays, securing the rotationof the feed-cam in conjunction with that of the feed-disk.

This construction and arrangement of parts necessitates peculiar meansfor getting proper tension on the lower or bobbin thread within itshorizontally-placed case. Therefore,inside of bobbin-case F, I provide arotating disk, 8, between which and the case is a cloth tension pad, t.Screw-pin u draws the disk against the cloth. Bobbin G slides oversleeve 11 on the disk 8, provided with pin w, which lodges in slot at inthe bobbin-hub and rotates the disk 8, which is loosened or tightened byscrewpin a at pleasure. Throat-plate e swings upon screw 1. It issecured in position by latch-pin a, depressed by pin 3, and raised byspiral spring 4.

By these devices it is practical to stitch in any direction at willwithin any tubular fabric which'can be passed over the throat-plate c.The stitch is regulated by turning thurnb- 5 screw W, which passesthrough feed-disk E and presser-foot C, pressing against feed-cam j.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with the presser-bar D 5 of the disk 8, providedwith a sleeve, 11, hav- Witnesses:

and the feeding presser-foot O, of the rockrecess, :0, in its hub,substantially as show n shaft f, arm 9, collars h and 5, feed-camj, andand'described. spring 9 substantially as shown and described.

2. Theeombination with the bobbin-case F, GEORGE CURTIS ing a stud, 'w,an elastic tension-pad, t, adjust- JOHN W. RIPLEY, a ing screw-pin u,and the bobbin G, having a S. J. GORDON:

